diff --git a/src/schema/rules/sidecars/nirs.yaml b/src/schema/rules/sidecars/nirs.yaml
index 4870887c23..de84a85536 100644
--- a/src/schema/rules/sidecars/nirs.yaml
+++ b/src/schema/rules/sidecars/nirs.yaml
@@ -149,7 +149,7 @@ NirsRequired:
     # Following counts required conditions enforced in checks
     ACCELChannelCount:
       level: optional
-      level_addendum: required if any channel type is ACC
+      level_addendum: required if any channel type is ACCEL
     GYROChannelCount:
       level: optional
       level_addendum: required if any channel type is GYRO